A painter leans a 15-ft ladder against a house.
The base of the ladder is 5 ft from the house. To the nearest tenth of a
foot, how high on the house does the ladder reach? Explain.
Let the height be h According to the Pythagoras Theorem, h= root 15^2-5^2 = root 225-25 = root 200= 14.14 Thus, the ladder reaches approximately 14.14 feet from the base of the house
